SB2026041515 - Unauthenticated command execution in FortiSandbox
Published: April 15, 2026 Updated: April 23, 2026
Security Bulletin ID
SB2026041515
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) OS Command Injection (CVE-ID: CVE-2026-39808)
CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Red
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to improper neutralization of special elements used in an OS command. A remote unauthenticated attacker can send a specially crafted HTTP request and execute unauthorized code or commands on the system.
Remediation
Install update from vendor's website.